參數(shù)資料
型號(hào): ADV7195KST
廠商: ANALOG DEVICES INC
元件分類(lèi): 消費(fèi)家電
英文描述: Multiformat Progressive Scan/HDTV Encoder with Three 11-Bit DACs and 10-Bit Data Input
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP52
封裝: PLASTIC, MQFP-52
文件頁(yè)數(shù): 24/36頁(yè)
文件大?。?/td> 499K
代理商: ADV7195KST
REV. 0
ADV7195
–24–
SHARPNESS FILTER AND ADAPTIVE FILTER
APPLICATION EXAMPLES
Sharpness Filter Application
The sharpness filter can be used to enhance or attenuate the Y
video output signal.
The following register settings were used to achieve the results
shown in Figure 44a and Figure 44b.
Input data was generated by an external signal source.
Table V.
Address
Register Setting
00hex
01hex
02hex
03hex
04hex
05hex
09hex
10hex
10hex
10hex
10hex
10hex
10hex
Mode Register 0
Mode Register 1
Mode Register 2
Mode Register 3
Mode Register 4
Mode Register 5
Mode Register 6
Filter Gain
Filter Gain
Filter Gain
Filter Gain
Filter Gain
Filter Gain
40hex
81hex
00hex
78hex
00hex
00hex
3Ehex
00hex (a)
08hex (b)
04hex (c)
40hex (d)
80hex (e)
22hex (f)
The effect of the sharpness filter can also be seen when using
the internally generated crosshatch pattern.
Table VI.
Address
Register Setting
00hex
01hex
02hex
03hex
04hex
05hex
09hex
Mode Register 0
Mode Register 1
Mode Register 2
Mode Register 3
Mode Register 4
Mode Register 5
Mode Register 6
00hex
85hex
00hex
38hex
00hex
00hex
3Ehex
CH1
T
R2
R4
1
(B)
(C)
(A)
TEK RUN
T
TRIG
D
500mV
M 4.00 s
REF4
500mV
4.00 s
9.99976ms
T
CH1
ALL FIELDS
(a)
CH1
T
R2
R1
1
(E)
(F)
(D)
TEK RUN
T
TRIG
D
500mV
M 4.00 s
REF2
500mV
4.00 s
9.99976ms
T
CH1
ALL FIELDS
(b)
Figure 44. Sharpness Filter Control with Different Gain Settings for Filter Gain
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ADV7196 Multiformat Progressive Scan/HDTV Encoder with Three 11-Bit DACs, 10-Bit Data Input, and Macrovision
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